Loading dialog with custom text in flutter

import 'dart:ui';

import 'package:flutter/material.dart';

import '../../utils/colors.dart';

import 'custom_text.dart';

showLoadingDialog(BuildContext context, String? text) {

  return showGeneralDialog(

    barrierDismissible: false,

    barrierLabel: '',

    barrierColor: Colors.black38,

    transitionDuration: const Duration(milliseconds: 300),

    pageBuilder: (ctx, anim1, anim2) => AlertDialog(

      shape: const RoundedRectangleBorder(

          borderRadius: BorderRadius.all(Radius.circular(15.0))),

      title: Row(

        mainAxisAlignment: MainAxisAlignment.center,

        children: [

          const SizedBox(

            height: 25,

            width: 25,

            child: CircularProgressIndicator(

              color: blackColor,

            ),

          ),

          const SizedBox(width: 20),

          CustomText(

              size: 18, text: text ?? "Loading...", textColor: blackColor),

        ],

      ),

      elevation: 0,

    ),

    transitionBuilder: (ctx, anim1, anim2, child) => BackdropFilter(

      filter:

          ImageFilter.blur(sigmaX: 4 * anim1.value, sigmaY: 4 * anim1.value),

      child: FadeTransition(

        opacity: anim1,

        child: child,

      ),

    ),

    context: context,

  );

}

Call it like this 

showLoadingDialog(context, "Please wait...");

 Navigator.pop(context);